A tvml file extension is related to the the TV NOW Portable Video Recorder. A tvml file contains video data. Probably obsolete.
TVML file extension - TV NOW Portable Video Recorder audio
What is tvml file? How to open tvml files?
File type specification:
The tvml file extension is used by TV NOW Portable Video Recorder, a recording device that can be connected to DVD player cable box satellite receiver VCR or TV developed by Tiger Electronics by Hasbro.
The tvml file stores audio data.
Mime types:
application/x-tvml
This tvml file type entry was marked as obsolete and no longer supported file format.
This type of file is no longer actively used and is most likely obsolete. This is typically the case for system files in old operating systems, file types from long discontinued software, or previous versions of certain file types (like documents, projects etc.) that were replaced in higher versions of their original programs.